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Module 2 BIOL103 Part A Flashcards | StudBud
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Module 2 BIOL103 Part A
Module 2 BIOL103 Part A
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A quiz for module 2, Part A of the BIOL103 exam. #UoW #BIOL103
Flashcards
108 cards
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Practice quiz
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Questions
108
Answers
1
Which of the bonds are not used for fuel extraction?
C-O
C-N
C-H
C-C
2
Enzymes are used to:
Increase activation energy
Decrease activation energy
Lower speed
Decrease activation energy and increase speed
3
Why do lipids produce the most energy?
They are in a reduced state
They are in an oxidised state
4
Can mitochondria be seen using a light microscope?
Yes
No
5
Which face of the cisternae (golgi apparatus) faces the cisterna of the ER?
Trans face
Cis Face
6
A group of specialised cells of similar structure and function is known as a(n):
Cell cluster
Functional unit
Organ system
Tissue
7
Rapid movement of ions across a membrane is mediated by:
Channels
Carriers
Transport ATPases
Exocytosis
8
Which organelle is the site for cellular respiration?
Ribosome
Mitochondria
Nucleus
Endoplasmic reticulum
9
What form of junction is a desmosome?
Communicating
Occluding
Tight
Anchoring
10
Which domains contain prokaryotic cells?
Archaea and Bacteria
Arachaea and Prokaryota
Archaea and Eukaryota
Bacteria and Eukaryota
11
What organelle is a member of the family of plastids?
Cytoskeleton
Mitochondria
Vacuole
Chloroplasts
12
Plastids are found in what type of cell?
All cells
Prokaryotes only
All eukaryotic cells
Plant and algal cells
13
Which of the following is a difference betweenplant and animal cells?
Plasma membrane
Mitochondria
Flagella
Ribosomes
14
Where are ribosomes assembled?
Nucleolus
Mitochondria
Nucleus
Cytoplasm
15
Which metabolic pathway releases energy?
Catabolism
Anabolism
16
Which is faster?
Channel
Carrier
17
Which of the following is not absent in prokaryotes?
Mitochondria
Ribosomes
Nucleus
Vacuoles
18
Which undergoes a conformational change?
Channel
Carrier
19
Microtubules
Nne of the above
Have a distinct protein
Are composed of actin
Are composed of tubulin
20
How many components make up the endomembrane system?
6
4
5
7
21
Whcih organelle produces pectin?
Chloroplasts
Golgi apparatus
ER
Nucleus
22
What is chemical energy?
The potential energy stored in bonds between atoms
The energy stored in uranium
The kinetic energy used by food
The usage of ATP
23
What is the basic structural and functional unit of living organisms?
Cells
Elements
Organeles
Atoms
24
What is the dominant feature of eukaryotic cells?
Nucleoid
Nucleus
Nuclear envelope
Ribosomes
25
What are three types of membranes?
Integral
Peripheral
Amphitropic
All the above
26
Which of the following is not a basic feature of a cell?
Plasma membrane
Nucleus
Chromosomes
Ribosomes
27
Neurons are able to divide
True
False
28
Which of the following is not a function of cholesterol in animal cell membranes?
Increases fluidity at low temperatures
Reduces phospholipid movement
Increases fluidity at moderate temperatures
Disrupts regular packaging of phospholipid
29
What makes up the protoplasm?
Nucleus and mitochondria
Cytoplasm and nucleus
Cytosol and nucleus
Cytosol and nuclear envelope
30
Where does the action of an organism begin?
Subcellular level
Atomic level
Tissue level
Cellular level
31
How many main types of muscle tissue do we have?
1
4
3
2
32
What chemical does peroxisomes produce?
Sulfurce acid
Hydrogen iodide
Hydrogen chloride
Hydrogen peroxide
33
How many membranes surround mitochondria?
1
2
4
3
34
Do membrane proteins attach of float in the lipid bilayer?
Float
Attach
35
Which of the following fibres are not found in connective tissue?
Actine
Collagen
Elastin
Recticulin
36
Which of the following is not a component of the endomembrane system?
Lysosomes
Plasma membrane
Nucleus
Nuclear envelope
37
Membranes are:
Symmetrical
Asymmetrical
38
What structure contains high concentrations of RNA, protein and DNA?
HELP!!!
Nuclear Envelope
Nuclear pores
Nucleoli
39
The arrangement of a molecular bilayer by lipids is:
Not spontaneous
Spontaneous
40
What is the diameter of prokaryotic cells?
4 micrometres
2 micrometres
1 micrometre
3 micrometres
41
Trehalose if the blood sugar for?
Vertebrates
Plants
Birds
Insects
42
Which organelle accounts for more than half of the total membrane in eukaryotic cells?
Golgi apparatus
Nuclear envelope
Mitochondria
Endoplasmic reticulum
43
How many types of activate transport are there?
2
4
3
1
44
Permeability of molecules depends on?
Electrical charge
Lipid solubility
All the above
Size
45
What is the first step of the signal transduction pathway?
Activation
Response
Reception
Transduction
46
Metabolic rate is not dependent on?
Environmental temperature
Food and water availability
Gender
Energy expenditure
47
Which part of the ER has ribosomes embedded?
Rough ER
Smooth ER
48
Which of the following is not a function of vacuoles?
Production of lysosomes
Maintenance of cell turgor pressure
Contains hydrolytic enzymes
Storage of nutrients, pigments or waste materials
49
Can chloroplasts move around the cell?
Yes
No
50
When a plant cell is placed in a hypo-osmotic solution the cell wall will prevent:
Plasmolysis
Active transport
The cell from bursting
Diffusion
51
Which of the following can not cross the selectively permeable barrier freely?
Carbon dioxide
Water
Oxygen
Ammonia
52
Which type of a cell lacks a membrane bound nucleus?
Eukaryotic
Prokaryotic
53
What does the endomembrane system regulate?
Stabilisation of the cell
Metabolic functions
Lipid traffic
Protein traffic
54
What type of enzymes are contained in lysosomes? (best answer)
Anabolic enzymes
Hydrolytic enzymes
Hydroxylytic enzymes
Catabolic enzymes?
55
What type of proteins make up connexons?
Intramembranes
Unimembranes
Transmembranes
Extramembranes
56
What type of transport moves against the concentration gradient?
Active transport
Osmosis
Diffusion
Passive transport
57
Which of the following is not a form of intracellular junction?
Occluding
Communication
Anchoring
None of the answers
58
Which type of junction prevents molecules passing the extracellular space between cells?
Tight
Anchoring
Communicating
59
Which of the following types of tissue give rise to the glandular tissue of endocrine glands?
Connective
Epithelial
Nervous
Muscular
60
Which structural protein recoils to its original shape?
Fibronectin
Collagen
Elastin
Laminin
61
If a red blood cell is placed in an isotonic solution, what happens?
It crenates
The movement of water going in is the same as going out
It remains normal
It bursts
62
Which of the following is only present in plants, algae and some protozoa?
Vesicles
Chloroplasts
Cytoskeleton
Lysosomes
63
What charge on polysaccharides attract cations?
Strong positive
Weak negative
Strong negative
Weak postive
64
Which type of signal uses secreting (not to be confused with endocrine) cells?
Endothelial
Paracrine
Endocrine
Synaptic
65
Diffusion is from:
Low concentration to high concentration
High concentration to low concentration
66
The amount of energy that is available to do work is known as?
Why is chemistry in biology?!!!
Enthalpy
Entropy
Gibbs Free Energy
67
Which of the following is not affected by adhesive proteins?
None of the above
Growth
Migration
Cell polarity
68
How many polypeptide chains make up collagen?
2
3
1
4
69
Which of the three compoenents of the cytoskeleton are more permanent?
Microfilaments
Microtubules
Intermediate filaments
70
Which of the following is not a characteristic of stroma?
Contains ribosomes
A membranous sac
Contains the chloroplast DNA
Internal fluid
71
When does a spontaneous reaction occur?
When Gibbs free energy is negative
When Gibbs free energy is 0
When Gibbs free energy is positive
72
How many membranes surround the nucleus?
Four
One
Three
Two
73
Which of the following is not a characteristic of prokaryotic cells?
Cytoplasm bound by the plasma membrane
No nucleus
A nucleoid
Vacuole
74
Which type of activate transport uses directly coupling of ATP for energy?
Primary
Quaternary
Tertiary
Secondary
75
According to the second law of thermodynamics, the entropy of the universe is:
Decelerating
Decreasing
Increasing
Remaining constant
76
What is the plasmodesmata?
Directly link bacteria
Directly link plant cells
Directly link animal cells
Directly link fungi
77
The extensive network of proteins and polysaccharides that fills the spaces between cells is:
The extracellular matrix
Serum
Plasma
Interstitial fluid
78
How efficient is the energy conversion in cells?
40%
10%
30%
20%
79
Which of the following animal tissues receives signals?
Connective
Nervous
Epithelial
Muscular
80
What type of fibre makes up cell walls?
Chitin
Amylose
Starch
Cellulose
81
Where do organelles and other subcellular components lie in eukaryotic cells?
Cytoplasm
Cytosol
Nucleus
Nucleosol
82
'in organisms, much of the work involves the transfer of energy' is referred to as?
Bioinformatics
The first law of thermodynamics
Bioenergetics
The second law of thermodynamics
83
Carrier proteins in the plasma membrane are required for?
Activate transport
Diffusion
Facilitated diffusion and Active transport
Facilitated diffusion
84
Which type of active transport uses co-transporters?
Secondary
Primary
85
What two substrates make up ribosomes?
Proteins and tRNA
rRNA and lipids
mRNA and proteins
rRNA and proteins
86
Which metabolic pathway is involved in the synthesis of amino acids?
Anabolism
Catabolism
87
How efficient is energy transfer?
100%
Never 100%
88
When Gibbs free energy is negative:
It is exergonic
It is endergonic
89
Which of the following is not a property of facilitated diffusion?
Faster than regular diffusion
Transport proteins can become saturated
Transport proteins are specific
Transport is not inhibited by competition
90
Which of the following is not a component of ATP?
Adenine
Triphosphate group
Cytosine
Ribose sugar
91
Does a spontaneous reaction require energy input?
No
Yes
92
From what type of energy do we get heat?
Chemical energy
Potential energy
Thermal energy
Kinetic energy
93
According to the first law of thermodynamics, the total energy of the universe:
Is reversing
Is decreasing
Remains constant
Is increasing
94
Glial cells support nervous tissue
False
True
95
How many functions do membrane proteins have?
5
7
4
6
96
What is the limit of human eye's resolution?
400 micrometres
100 micrometres
200 micrometres
300 micrometres
97
What would be the consequence if someone was transfused intravenously with distilled water?
The RBC would stay the same
The RBC would shrink
The RBC would burst
The RBC would be supported by the cell wall and not change
98
What type of junction provides a pathway of low electrical resistance?
Gap
Anchoring
Communicating
Tight
99
Which of the following is not a function of the smooth ER?
Synthesis of protein
Detoxifies drugs and poisons
Metabolizes carbohydrates
Stores calcium ions
100
What is the difference between simple and stratified?
Stratified has 1 layer
Simple has multiple layers
Simple has 1 layer
101
Which of the following is not a function of the cell wall?
Prevents excessive uptake of water
Protection
Maintenance of shape
None of the above
102
The 2 main forms of the extracellular matrix are: (pick 1)
Basal lamina
Epithelial conjugates
Interstitial matrix
Plasmodesmata
103
Which of the following is not a component of the cytoskeleton?
Intermediate filaments
Microtubules
Microfilaments
Macrotubules
104
Which type of solution has a higher solute concentration and lower water concentration?
Hypertonic
Isotonic
Still need to revise this
Hypotonic
105
What are the 3 main components of the ECM?
Structural protains
Polysaccharides
All of the above
Adhesive proteins
106
How do peripheral proteins attach via?
Non-polar interactions
Covalent interaction
Non-covalent interactions
Polar interactions
107
Plant cell walls:
Are predominantly composed of polysaccharides
Have strong micro fibrils and pectin that resist stretching
Are soft and pliable
Are predominantly composed of proteins
108
Rate of diffusion depends on
Permeability
Both
Magnitude of concentration gradient
